http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003342576-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20d3042eb4ea7c9afd525aa89373349d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C25-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-389 |
| filingDate | 2002-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5174b6b2c8bf8afd7a7fef76317b279c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f21d2faf0e8f8e4f6279c55173fea466 |
| publicationDate | 2003-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003342576-A |
| titleOfInvention | Liquid crystal compound purification method |
| abstract | (57) [Problem] To provide a purification method for obtaining a liquid crystal compound which does not cause a decrease in voltage holding ratio even when exposed to a high temperature. SOLUTION: A differential scanning calorimetry is performed on a liquid crystal compound which is made of an element selected from the group consisting of carbon, hydrogen, fluorine, chlorine and oxygen and has no aliphatic unsaturated group in an atmosphere containing oxygen. Of the peaks obtained in 20 ° C. higher than the extrapolated heat generation start temperature A (° C.) of the heat generation peak on the lowest temperature side in the temperature range where the liquid crystal compound shows an isotropic phase. The liquid crystal is heated within a range from a low temperature to a temperature 150 ° C. higher than A and under an atmosphere containing oxygen so that the decomposition rate of the liquid crystal compound is 2% or less, and then purified by an adsorbent. A method for purifying a compound. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006089519-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006265453-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011084478-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009007287-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011213787-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012077308-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011105687-A |
| priorityDate | 2001-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.